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Noise Variance

Environmental Services is applying for a noise variance to allow open trench work and cured-in-place pipe lining at locations indicated on the maps below. A variance is required when work occurs outside normal construction hours, 7:00 a.m. to 6:00 p.m. Monday through Saturday. This includes work after 6:00 p.m. and before 7:00 a.m., and all hours on Sunday.

Work would take place for up to six weeks on NE Killingsworth Street at NE MLK Boulevard, up to six weeks on NE Alberta Street near N Vancouver Avenue, and one week on NE Rosa Parks Way between NE Garfield Avenue and NE MLK Boulevard.

Environmental Services will present the noise variance application to the Noise Board on Wednesday, July 13. Your comments regarding the proposed night work are valuable and can be submitted by letter or email to:

Project Contact Information

If you have questions or concerns about these projects, contact Rhetta Drennan at 503-823-6006 or Rhetta.Drennan@portlandoregon.gov. Rhetta will forward any noise-related comments to the Noise Office. To be added to the email update list for these projects email Rhetta with “WoKi Alleys” or “WoKi Streets” in the subject line.

Project staff will attend the following meetings to present information on the projects and the night work needed:

Construction Methods

The city’s contractor will use open trench excavation, which will involve the following steps. There may be periods of inactivity between the steps. For more information on construction methods go to www.portlandoregon.gov/bes/methods.

Cut pavement for pipe installation

Remove pavement and other materials

Install new sewer pipe

Excavate and connect drains

Excavate and connect sewer branches to properties as needed

Backfill and compact trenches with sand or gravel

Install temporary pavement

Complete final paving and restoration

The equipment to be used at these locations will consist of a pavement saw, track hoe, front-end loader, dump trucks, bypass pumps, pavement roller, generators, and lights.

Cured-in-place pipe lining occurs between two manholes. At one, vehicle access is very limited to accommodate a refrigerator truck, generators, and lights with crews working. At the other manhole a small crew of one or two people with a set of lights and a small barricade. There is usually one day of prep leading up to the lining, and a day/night for the lining.